A Health and Fitness Blog

Dispatching Another Low Carb Mis-truth

One common mis-truth that I hear in regard to switching to a low carbohydrate diet is that it will cause you to suffer from a lack of energy. This actually came up recently in a consultation I had with a new client.

The truth is that low carb diets bring about many fantastic changes, and one of those changes is having MORE energy. It is true that if you rapidly switch from a high carbohydrate diet (150 grams or more per day) to a low carbohydrate diet (60 grams or less per day) your body may go through a temporary adjustment period where you feel like your energy is low. This is due to the fact that your body is switching from using sugar for energy, to using fat and ketone bodies ( ketone bodies are a by-product of the fatty acids that are broken down for energy) for energy. The human body is actually extremely efficient at using fat and ketone bodies for energy.

Here is a great excerpt from Gary Taubes’ phenomenal book, Good Calories, Bad Calories: Challenging the Conventional Wisdom on Diet, Weight Control, and Disease:

“Though glucose is a primary fuel for the brain, it is not, however, the only fuel, and dietary carbohydrates are not the only source of that glucose. If the diet includes less than 130 grams of carbohydrates, the liver increases the synthesis of molecules called ketone bodies, and these supply the necessary fuel for the brain and the central nervous system. If the diet includes no carbohydrates at all, ketone bodies supply three-quarters of the energy to the brain. The rest comes from glucose synthesized from the amino acids in protein, either from the diet or from the breakdown of muscle, and from a compound called glycerol that is released when triglycerides in the fat tissue are broken down into their component fatty acids.”

Bottom line? If you want to have more energy, and a myriad of other benefits including better sleep, the reduction of body fat, lower triglycerides, and normalized blood pressure and blood sugar levels…it’s time to switch to a low carbohydrate diet.

About

Neil Holland is certified by the National Academy of Sports Medicine as a Personal Trainer. Since 2003, he has been helping people realize their physical fitness potential, so they can enjoy a healthier lifestyle and a higher quality of life.